Vein filter
US8500774B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 1, 2009 |
| Grant date | Aug 6, 2013 |
| Priority date | — |
| Expiry date | Apr 26, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2250/0059
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A vessel filter comprising a first distal region terminating at a first end and a second proximal region terminating at a second end of the filter and movable between a collapsed position for delivery to the vessel and an expanded position for placement within the vessel. The first region has a filter portion having a converging region to direct particles toward the center of the filter. The second region is flared in the expanded position to have a transverse dimension increasing toward a second end portion opposite the filter portion and includes a vessel engaging portion at the second end portion. The first region has a retrieval hook and a spacer forming a looped region extending radially from the first region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.